Home / 7,224.50-10,831.88-3,326.78

Finding the Fourth Proportional to 7,224.50, 10,831.88 and 3,326.78

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Solution

The fourth proportional to 7,224.50, 10,831.88 and 3,326.78 is: 4,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.50 : 10,831.88 = 3,326.78 : x
  2. Step 2: Convert to fraction form
    7,224.50/10,831.88 = 3,326.78/x
  3. Step 3: Cross multiply
    7,224.50x = 10,831.88 × 3,326.78
  4. Step 4: Simplify right side
    7,224.50x = 36,035,281.75
  5. Step 5: Solve for x
    x = 36,035,281.75/7,224.50
  6. Step 6: Final answer
    x = 4,987.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.